JP2019146186A - Method for reducing interference between wifi and lte(long term evolution) and device for reducing interference between wifi and lte - Google Patents

Abstract

To provide a method and device for reducing an interference between WiFi and LTE(Long Term Evolution).SOLUTION: There is provided a method for, regarding the field of a communication technology, reducing an interference between WiFi and LTE to minimize the interference, and to improve a user experience when WiFi and LTE coexist by adjusting a WiFi operation channel of a terminal in accordance with an operational state of LTE. The method includes: a step for determining whether or not an LTE network operates; a step for, when the LTE network operates, acquiring an operational state of the LTE network, therein the operational state of the LTE network includes an operational frequency of the LTE network; a step for determining the WiFi operation channel in accordance with the operational state of the LTE network and a preset rule, therein the preset rule includes a correspondence relation between the operational state of the LTE network and a channel interference parameter between the LTE network and a WiFi channel.SELECTED DRAWING: Figure 2

Description

  The present invention relates to the field of communication technology, and in particular, to a method for reducing interference between WiFi and LTE and an apparatus for reducing interference between WiFi and LTE.

  LTE (Long Term Evolution) is a technical standard as a long-term evolution of UMTS created by 3GPP (The Third Generation Partnership Project) organization. LTE includes two modes, TDD (Time Division Duplexing) and FDD (Frequency Division Duplexing). The frequency bands that TDD-LTE can support include frequency bands such as B38 (2750MHz to 2620MHz), B39 (1880MHz to 1920MHz), B40 (2300MHz to 2400MHz), B41 (2490MHz to 2690MHz), and FDD-LTE The frequency bands that can be supported include B7 and other frequency bands. The uplink frequency band (uplink) of the frequency band B7 is 2500 MHz to 2570 MHz, and the downlink frequency band (downlink) of the frequency band B7 is 2620 MHz to 2690 MHz.

WiFi (Wireless Fidelity) is a technology that enables wireless connection between terminals (personal computers, mobile phones, Pads, etc.) and interoperability between wireless network products based on the IEEE 802.11 standard. Used to improve the performance. The operating frequency range of WiFi is 2400 MHz to 243.5 MHz, and this operating frequency range is divided into 13 WiFi channels (Channel 1 to Channel 13), and each WiFi channel has a bandwidth of 22 MHz.
FIG. 1 is a schematic diagram of an LTE operating frequency band and a WiFi operating frequency band. As can be seen, there is no gap between the low frequency of WiFi and the high frequency of LTE B40, and the gap between the high frequency of WiFi and the low frequency of LTE B41 is about 13 MHz. In the prior art, when the terminal's WiFi and LTE operate together, the terminal is connected to the base station by LTE and then enables the WiFi hotspot function. However, the channel through which the WiFi hotspot can operate is fixed by various terminal products. Therefore, when WiFi and LTE coexist, interference can easily occur between the radio frequency signals of WiFi and LTE.

Special table 2014-507870 gazette International Publication No. 2013/17997

  In embodiments of the present invention, by adjusting the WiFi operating channel of the terminal according to the LTE operating state, when WiFi and LTE coexist, WiFi and WiFi are improved so as to minimize interference and improve user experience. A method for reducing interference between LTE and an apparatus for reducing interference between WiFi and LTE are provided.

  In order to achieve the above object, the following technical solutions are used in the embodiments of the present invention.

According to a first aspect, an embodiment of the present invention provides a method for reducing interference between WiFi and LTE, the method comprising:
Determining whether the LTE network is operational;
When the LTE network is operating, the step of obtaining the operating state of the LTE network, the operating state of the LTE network including the operating frequency of the LTE network; and
Determining a WiFi operating channel according to an LTE network operating state and a pre-configured rule, wherein the pre-configured rule determines a correspondence relationship between the LTE network operating state and channel interference parameters between the LTE network and the WiFi channel. Including, steps,
including.

In a first possible implementation of the first aspect, if the channel interference parameter is a channel interference value, determining a WiFi operating channel according to LTE network operating conditions and pre-configured rules comprises:
Determining a first WiFi channel according to LTE network operating conditions and pre-configuration rules, wherein the first WiFi channel is a WiFi channel having a channel interference value less than a first threshold;
Selecting any free channel in the first WiFi channel as the WiFi operating channel;
including.

In a second possible implementation of the first aspect, if the channel interference parameter is throughput, determining the WiFi operating channel according to LTE network operating conditions and pre-configured rules comprises:
Determining a second WiFi channel according to LTE network operating conditions and pre-configuration rules, wherein the second WiFi channel is a WiFi channel having a throughput greater than or equal to a second threshold; and
Selecting any free channel in the second WiFi channel as the WiFi operating channel;
including.

  In any one of the first aspect or the first and second possible embodiments of the first aspect, there is further provided a third possible embodiment of the first aspect, wherein the LTE network operates. Prior to the step of determining whether the method, the method further comprises enabling a WiFi hotspot feature.

In any one of the first aspect, or the first, second and third possible embodiments of the first aspect, there is further provided a fourth possible embodiment of the first aspect, the method comprising: ,
If the LTE network is not operating, select any free channel in the WiFi channel as the WiFi operating channel;
Further included.

According to a second aspect, one embodiment of the present invention provides an apparatus for reducing interference between WiFi and LTE, the apparatus comprising:
A first determining unit configured to determine whether the LTE network is operating;
When the first determining unit determines that the LTE network is operating, the acquiring unit is configured to acquire the operating state of the LTE network, and the operating state of the LTE network includes the operating frequency of the LTE network. , The acquisition part,
A second determination unit configured to determine a WiFi operation channel according to an LTE network operation state acquired by the acquisition unit and a preset rule, wherein the preset rule includes the LTE network operation state, the LTE network A second determining unit including a correspondence relationship between channel interference parameters between the network and the WiFi channel;
including.

In a first possible embodiment of the second aspect, the second decision unit comprises a decision subunit and a selection subunit,
The determining subunit is configured to determine a first WiFi channel according to an LTE network operating state and pre-configuration rules when the channel interference parameter is a channel interference value, wherein the first WiFi channel is the first A WiFi channel with a channel interference value below a threshold,
The selection subunit is configured to select any free channel in the first WiFi channel as the WiFi operating channel.

In the first possible embodiment of the second aspect or the second aspect, the second possible embodiment of the second aspect is further provided, wherein the determining subunit is the channel interference parameter is throughput, Further configured to determine a second WiFi channel according to LTE network operating conditions and preset rules, wherein the second WiFi channel is a WiFi channel having a throughput greater than or equal to a second threshold;
The selection subunit is further configured to select any free channel in the second WiFi channel as the WiFi operating channel.

  In either one of the second aspect or the first and second possible embodiments of the second aspect, there is further provided a third possible embodiment of the second aspect, wherein the apparatus is activated And the enabling unit is configured to enable the WiFi hotspot function before the first determining unit determines whether the LTE network is operating.

  In any one of the first, second and third possible embodiments of the second aspect or the second aspect, there is further provided a fourth possible embodiment of the second aspect, wherein the selection subunit Is further configured to select any free channel in the WiFi channel as the WiFi operating channel when the LTE network is not operating.

  According to the method for reducing interference between WiFi and LTE and the apparatus for reducing interference between WiFi and LTE provided in an embodiment of the present invention, the terminal WiFi according to the operating state of LTE By adjusting the operating channel, when WiFi and LTE co-exist, LTE network operating state is detected and LTE network is operating so that interference is minimized and user experience is improved. In some cases, the operating frequency of the LTE network is obtained, and the WiFi operating channel is determined according to the correspondence between the LTE network operating state and the channel interference parameters between the LTE network and the WiFi operating channel in the pre-configuration rules. .

  BRIEF DESCRIPTION OF THE DRAWINGS To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show only some embodiments of the present invention, and those skilled in the art can further derive other drawings from these accompanying drawings without difficulty.

It is the schematic of the frequency band of LTE and the frequency band of WiFi in a prior art. FIG. 2 is a schematic diagram of a method for reducing interference between WiFi and LTE according to an embodiment of the present invention; FIG. 6 is a schematic diagram of another method for reducing interference between WiFi and LTE according to an embodiment of the present invention; 1 is a schematic diagram of an apparatus for reducing interference between WiFi and LTE according to an embodiment of the present invention. FIG. FIG. 6 is a schematic diagram of another apparatus for reducing interference between WiFi and LTE according to an embodiment of the present invention. FIG. 6 is a schematic diagram of another apparatus for reducing interference between WiFi and LTE according to an embodiment of the present invention.

  The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without difficulty will fall within the protection scope of the present invention.

Embodiment 1
This embodiment of the present invention provides a method for reducing interference between WiFi and LTE. As shown in FIG. 2, the method includes:

  Step 201: Determine whether the LTE network is operating.

  Step 202: If the LTE network is operating, obtain the operating state of the LTE network. The operating state of the LTE network includes the operating frequency of the LTE network.

  Since LTE can support multiple different frequency bands, it is necessary to obtain the current LTE network operating state, ie, the current LTE network operating frequency. The operating frequency band of the current LTE network can be determined according to the operating frequency. For example, when the LTE network is operating, the acquired operating frequency of the current LTE network is 2385 MHz, and according to the operating frequency of 2385 MHz, it can be determined that the operating frequency band of the current LTE network is B40. Optionally, the operating frequency band and operating frequency of the current LTE network may be obtained directly.

  Step 203: Determining the WiFi operating channel according to the LTE network operational state and the pre-configured rules, the pre-configured rules include a correspondence between the LTE network operational state and channel interference parameters between the LTE network and the WiFi channel .

  Channel interference parameters include, but are not limited to, channel interference values, throughput, and the like.

  Method 1: If the channel interference parameter is a channel interference value, the step of determining the WiFi operating channel according to the LTE network operating state and the preset rules includes:

  (A1): The first WiFi channel is determined according to the LTE network operating state and the preset rules. The first WiFi channel is a WiFi channel having a channel interference value less than the first threshold.

  The preset rules can be shown as Table 1. The first line shows the operating frequency band and operating frequency of the LTE network (in Table 1, the LTE network operating frequency band is B40, and the LTE network bandwidth is 20M. The first column represents WiFi channels (13 in total, indicated by Chan1 to Chan13), and the second row represents each operating frequency within the operating frequency band shown in the first row (In Table 1, the operation frequency is in the range of 2360 MHz to 2390 MHz, and an example having an interval of 5 MHz for each of the two operation frequencies is described). Specifically, if the LTE network is operating at 2390 MHz, the interference of the 2390 MHz channel in the frequency band LTE B40 to the WiFi channel Chan1 is 56 dB, and the interference of the 2390 MHz channel in the frequency band LTE B40 to the WiFi channel Chan2 is By analogy, the interference of the 2390 MHz channel in the frequency band LTE B40 with respect to the WiFi channel Chan13 is 0 dB. In general, the channel interference parameter in row M column N represents the channel interference value of a given WiFi channel for the current LTE network operating frequency band and operating frequency (the channel interference value can be expressed in dB). ). It should be noted that Table 1 is only one exemplary description of the preset rules, and any other way in which the preset rules can be expressed is within the protection scope of the present invention. Further, for various terminal devices, the specific values in Table 1 may be set according to actual tests and measurements.

  As shown in Table 1, if the LTE network is operating in the frequency band LTE B40 and has a bandwidth of 20M and an operating frequency of 2390MHz, the channel interference value of the WiFi channel gradually decreases from Chan1 to Chan13 . Therefore, a WiFi channel having a channel interference value less than the first threshold can be used as the first WiFi channel. In this case, the interference between the first WiFi channel and the current LTE network operating state is relatively small. As shown in Table 1, assuming that the first threshold is 0 dB, the first WiFi channel includes Chan7 to Chan13.

  (A2): Select any free channel in the first WiFi channel as the WiFi operation channel.

  When Chan7 to Chan13 are selected as the first WiFi channel according to the description in (a1), any free channel in Chan7 to Chan13 is selected as the WiFi operation channel. For example, if Chan7 is already used, if Channel 7 is selected at this time, channel contention will occur. Therefore, any free WiFi channel in Chan8 to Chan13 can be selected as the WiFi operation channel.

  Method 2: If the channel interference parameter is throughput, determining the WiFi operating channel according to LTE network operating conditions and pre-configured rules includes:

  (B1): The second WiFi channel, which determines the second WiFi channel according to the operating state of the LTE network and the preset rules, is a WiFi channel having a throughput equal to or greater than a second threshold.

  The preset rules can be shown as Table 2. The first line shows the operating frequency band and operating frequency of the LTE network (In Table 2, the LTE network operating frequency band is B40, and the LTE network bandwidth is 20M. The first column represents WiFi channels (13 in total, indicated by Chan1 to Chan13), and the second row represents each operating frequency within the operating frequency band shown in the first row (In Table 2, the operation frequency is in the range of 2360 MHz to 2390 MHz, and an example having an interval of 5 MHz for each of the two operation frequencies is described). Specifically, when the LTE network is operating at 2390 MHz, the throughput of the WiFi channel Chan1 is 0 Mbps, the throughput of the WiFi channel Chan2 is 0 Mbps, and by analogy, the throughput of the WiFi channel Chan13 is 54 Mbps. In general, the throughput in row M column N represents the throughput of a given WiFi channel for the current LTE network operating frequency band and operating frequency. It should be noted that Table 2 is only one exemplary description of the preset rules, and any other way in which the preset rules can be expressed is within the protection scope of the present invention. Further, for various terminal devices, the specific values in Table 2 may be set according to actual tests and measurements.

  As shown in Table 2, if the LTE network is operating in the frequency band LTE B40 and has a bandwidth of 20M and an operating frequency of 2390MHz, the throughput of the WiFi channel gradually increases from Chan1 to Chan13, and the throughput An increase in means a decrease in interference between the two channels. Therefore, a WiFi channel having a throughput equal to or higher than the second threshold can be used as the second WiFi channel. In this case, the interference between the second WiFi channel and the current LTE network operating state is relatively small. As shown in Table 2, assuming that the second threshold is 54 dB, the second WiFi channel includes Chan7 to Chan13.

  (B2): Select any free channel in the second WiFi channel as the WiFi operation channel.

  According to the description of b1, when Chan7 to Chan13 are selected as the second WiFi channel, any free channel in Chan7 to Chan13 is selected as the WiFi operation channel. For example, if Chan7 is already used, if Channel 7 is selected at this time, channel contention will occur. Therefore, any free WiFi channel in Chan8 to Chan13 can be selected as the WiFi operation channel.

  Further, as shown in FIG. 3, prior to step 201, the method further includes:

  Step 200: Enable the WiFi hotspot feature.

  As shown in FIG. 3, after step 201, the method may further include:

  Step 204: If the LTE network is not operating, select any free channel in the WiFi channel as the WiFi operating channel.

  Specifically, since the LTE network is not working at this time, there will be no interference issues between the LTE network and the WiFi channel, and therefore any vacancy in the WiFi channel (ie, Chan1 to Chan13) Can be selected as the WiFi operating channel.

  According to the method for reducing interference between WiFi and LTE provided in this embodiment of the present invention, WiFi and LTE coexist by adjusting the WiFi operating channel of the terminal according to the LTE operating state. When the LTE network is operating, the LTE network operating frequency is obtained and the WiFi operation is detected so that the interference is minimized and the user experience is improved. The channel is determined according to the correspondence between the LTE network operating state and the channel interference parameters between the LTE network and the WiFi operating channel in the pre-configuration rules.

Embodiment 2.
This embodiment of the present invention provides an apparatus for reducing interference between WiFi and LTE. This apparatus corresponds to the method for reducing interference between WiFi and LTE described in the first embodiment. As shown in FIG.
A first determination unit 401 configured to determine whether the LTE network is operating;
When the first determining unit 401 determines that the LTE network is operating, the acquiring unit 402 is configured to acquire the operating state of the LTE network, and the operating state of the LTE network is the operating frequency of the LTE network. Including an acquisition unit 402,
A second determination unit 403 configured to determine a WiFi operation channel according to an LTE network operation state and a preset rule acquired by the acquisition unit 402, wherein the preset rule includes the LTE network operation state, the LTE network A second determination unit 403 including a correspondence relationship between channel interference parameters between the network and the WiFi channel;
including.

Optionally, as shown in FIG. 5, the second determination unit 403 includes a determination subunit 4031 and a selection subunit 4032,
The determining subunit 4031 is configured to determine a first WiFi channel according to LTE network operating conditions and pre-configuration rules when the channel interference parameter is a channel interference value, wherein the first WiFi channel is the first A WiFi channel having a channel interference value less than a threshold of
The selection subunit 4032 is configured to select any free channel in the first WiFi channel as the WiFi operating channel.

Optionally, as shown in FIG. 5, the determination subunit 4031 is further configured to determine a second WiFi channel according to LTE network operating conditions and preset rules when the channel interference parameter is throughput. And the second WiFi channel is a WiFi channel having a throughput greater than or equal to the second threshold,
The selection subunit 4032 is further configured to select any free channel in the second WiFi channel as the WiFi operating channel.

  Optionally, as shown in FIG. 5, the apparatus further includes an enabling unit 404, which enables WiFi before the first determining unit 401 determines whether the LTE network is operating. It is configured to enable the hotspot feature.

  Optionally, as shown in FIG. 5, the selection subunit 4032 is further configured to select any free channel in the WiFi channel as the WiFi operating channel when the LTE network is not operating. .

  According to the apparatus for reducing interference between WiFi and LTE provided in this embodiment of the present invention, WiFi and LTE coexist by adjusting the WiFi operating channel of the terminal according to the LTE operating state The first determining unit determines the operating state of the LTE network so that interference is minimized and the user experience is improved, and if it is determined that the LTE network is in the operating state, According to the LTE network operating frequency acquired by the acquiring unit, the determination unit of 2 in accordance with the correspondence relationship between the LTE network operating state and the channel interference parameter between the LTE network and the WiFi operating channel in the preset rule. Determine the operating channel.

Embodiment 3.
This embodiment of the present invention provides an apparatus for reducing interference between WiFi and LTE. As shown in FIG. 6, the device 60 includes a memory 601, a processor 602, a transmitter 603 (optional), a receiver 604 (optional), and a bus system 605.

  Memory 601 may include read only memory and random access memory and provides instructions and data to processor 602. A portion of the memory 601 may further include non-volatile random access memory (NVRAM).

Memory 601 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof.
Contains various operating instructions and is used to perform various basic services and handle hardware-based tasks, including operating instructions and various system programs used to perform various operations. Operating system.

  In this embodiment of the present invention, the processor 602 calls an operation instruction stored in the 601 to determine whether the LTE network is operating, and when the LTE network is operating, the LTE network operating state The operation state of the LTE network includes the operation frequency of the LTE network, the operation of determining the WiFi operation channel according to the operation and the operation state of the LTE network and the preset rule, and the preset rule is Performing an operation including a correspondence relationship between an operation state of the LTE network and a channel interference parameter between the LTE network and the WiFi channel.

  Optionally, the processor 602 is further configured to determine a first WiFi channel according to LTE network operating conditions and pre-configured rules if the channel interference parameter is a channel interference value. The first WiFi channel is a WiFi channel having a channel interference value less than the first threshold, and any free channel in the first WiFi channel is selected as the WiFi operation channel.

  Optionally, if the channel interference parameter is throughput, the processor 602 determines a second WiFi channel that is a WiFi channel having a throughput greater than or equal to a second threshold according to LTE network operating conditions and preset rules, Further configured to select any free channel in the second WiFi channel as the WiFi operating channel.

  Optionally, the processor 602 is configured to enable the WiFi hotspot feature before determining whether the LTE network is operating.

  Optionally, the processor 602 is further configured to select any free channel in the WiFi channel as the WiFi operating channel when the LTE network is not operating.

  The processor 602 may be, for example, a CPU (Central Processing Unit). Memory 601 may include read only memory and random access memory and provides instructions and data to processor 602. A portion of the memory 601 may further include non-volatile random access memory (NVRAM). In certain applications, the components of the device for reducing interference between WiFi and LTE are coupled together using a bus system 605, which includes a power bus, A control bus, a status signal bus, and the like may be further included. However, for clarity of illustration, various types of buses are shown as a bus system 605 in the figure.

  The methods disclosed in the previous embodiments of the present invention may be applied to the processor 602 and executed by the processor 602. The processor 602 can be an integrated circuit chip and has signal processing capabilities. In the execution process, each step of the foregoing method may be performed by a hardware integrated logic circuit in processor 602 or by software type instructions. The aforementioned processor 602 can be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA), or another programmable logic device, discrete gate or transistor circuit. It can be a logic device or a discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general purpose processor may be a microprocessor, and the processor 602 may be any conventional processor or the like. Each step of the methods disclosed in connection with embodiments of the present invention may be performed and completed directly by a hardware decoding processor, and executed and completed using a combination of hardware and software modules in the decoding processor. May be. Software modules may be located in mature storage media in the art, such as random access memory, flash memory, read only memory, programmable read only memory, electrically erasable writable memory, registers. A storage medium is located in memory 601 and processor 602 reads information in memory 601 and combines with the hardware of processor 602 to complete the steps of the method described above.

  According to the apparatus for reducing interference between WiFi and LTE provided in this embodiment of the present invention, WiFi and LTE coexist by adjusting the WiFi operating channel of the terminal according to the LTE operating state If the LTE network operating state is determined and the LTE network is determined to be in an operating state so that interference is minimized and the user experience is improved, the WiFi operating channel is Is determined according to the correspondence relationship between the LTE network operation state and the channel interference parameter between the LTE network and the WiFi operation channel in the preset rule according to the LTE network operation frequency acquired by the.

  It should be understood that in some embodiments provided in this application, the disclosed systems, devices, and methods may be implemented in other ways. For example, the described apparatus embodiment is merely exemplary. For example, the unit division is merely logical function division, and may be other division in actual implementation. For example, multiple units or components may be combined or integrated into another system, and some features may be ignored or not performed. In addition, the illustrated or described mutual coupling or direct coupling or communication connection may be implemented using several interfaces. Indirect coupling or communication connection between devices or units can be realized in electronic form, mechanical form, or other form.

  A unit described as a separate part may or may not be physically separated, and a part illustrated as a unit may or may not be a physical unit in one place. It may be located, and may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of each embodiment.

  In addition, the functional units in each embodiment of the present invention can be integrated into one processing unit, each of which may be physically independent, or two or more units may be one Integrated into the unit. The integrated unit can be realized in the form of hardware, or can be realized in a form in which hardware is added to the software function unit.

  If the aforementioned integrated unit is realized in the form of a software functional unit, the integrated unit can be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium, and the computer device (which can be a personal computer, server, or network device) performs some of the method steps described in the embodiments of the present invention. Includes several instructions to instruct The above-mentioned storage media include programs such as USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, and optical disk. It includes any medium that can store code.

  Finally, it should be noted that the foregoing embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail in connection with the above-described embodiments, those skilled in the art will not be able to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. It should be understood that modifications may be made to the described technical solutions or equivalent substitutions may be made for some technical features of the foregoing embodiments.

60 devices
401 First decision part
402 Acquisition Department
403 Second decision unit
404 Activation Department
601 memory
602 processor
603 transmitter
604 receiver
605 bus system
4031 decision subunit
4032 Select subunit

Claims (10)

A method for reducing interference between WiFi and LTE,
Determining whether the LTE network is operational;
When the LTE network is operating, obtaining an operating state of the LTE network, wherein the operating state of the LTE network includes an operating frequency of the LTE network; and
Determining a WiFi operating channel according to the LTE network operating state and a preset rule, wherein the preset rule includes the LTE network operating state and a channel between the LTE network and the WiFi channel. Including a correspondence with interference parameters;
Including a method. If the channel interference parameter is a channel interference value, the step of determining a WiFi operating channel according to the operating state and pre-set rules of the LTE network comprises:
Determining a first WiFi channel according to the operational state of the LTE network and the pre-configured rules, wherein the first WiFi channel is a WiFi channel having a channel interference value less than a first threshold; Steps,
Selecting any free channel in the first WiFi channel as the WiFi operating channel;
The method of claim 1 comprising: If the channel interference parameter is throughput, the step of determining a WiFi operating channel according to the operating state and pre-set rules of the LTE network comprises:
Determining a second WiFi channel according to the operational state of the LTE network and the preset rule, wherein the second WiFi channel is a WiFi channel having a throughput greater than or equal to a second threshold; and ,
Selecting any free channel in the second WiFi channel as the WiFi operating channel;
The method of claim 1 comprising:   4. The method according to any one of claims 1 to 3, wherein before the step of determining whether an LTE network is operating, the method further comprises enabling a WiFi hotspot function.   5. The method according to any one of claims 1 to 4, wherein the method further comprises the step of selecting any free channel in the WiFi channel as the WiFi operating channel when the LTE network is not operating. The method described. A device for reducing interference between WiFi and LTE,
A first determining unit configured to determine whether the LTE network is operating;
When the first determining unit determines that the LTE network is operating, the acquiring unit is configured to acquire an operating state of the LTE network, and the operating state of the LTE network is the LTE network An acquisition unit including the operating frequency of the network;
A second determination unit configured to determine a WiFi operation channel according to the operation state of the LTE network acquired by the acquisition unit and a preset rule, wherein the preset rule is the LTE network A second determination unit including a correspondence relationship between the operating state of the channel and a channel interference parameter between the LTE network and a WiFi channel;
Including the device. The second determination unit includes a determination subunit and a selection subunit,
The determining subunit is configured to determine a first WiFi channel according to the operational state of the LTE network and the preset rule when the channel interference parameter is a channel interference value; 1 WiFi channel is a WiFi channel having a channel interference value less than the first threshold;
The selection subunit is configured to select any free channel in the first WiFi channel as the WiFi operating channel;
The apparatus according to claim 6. The determining subunit is further configured to determine a second WiFi channel according to the operating state of the LTE network and the preset rule when the channel interference parameter is throughput, The WiFi channel is a WiFi channel with a throughput greater than or equal to the second threshold,
The selection subunit is further configured to select any free channel in the second WiFi channel as the WiFi operating channel;
The device according to claim 6 or 7.   The apparatus further includes an enabling unit, the enabling unit configured to enable a WiFi hotspot function before the first determining unit determines whether the LTE network is operating. 9. The device according to any one of claims 6 to 8, wherein   10. The selection subunit according to any of claims 6 to 9, wherein the selection subunit is further configured to select any free channel in the WiFi channel as the WiFi operating channel when the LTE network is not operating. A device according to claim 1.

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